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| Mirrors > Home > MPE Home > Th. List > pnrmtop | Structured version Visualization version GIF version | ||
| Description: A perfectly normal space is a topological space. (Contributed by Mario Carneiro, 26-Aug-2015.) |
| Ref | Expression |
|---|---|
| pnrmtop | ⊢ (𝐽 ∈ PNrm → 𝐽 ∈ Top) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pnrmnrm 23665 | . 2 ⊢ (𝐽 ∈ PNrm → 𝐽 ∈ Nrm) | |
| 2 | nrmtop 23661 | . 2 ⊢ (𝐽 ∈ Nrm → 𝐽 ∈ Top) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝐽 ∈ PNrm → 𝐽 ∈ Top) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 Topctop 23218 Nrmcnrm 23635 PNrmcpnrm 23637 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-cnv 5658 df-dm 5660 df-rn 5661 df-iota 6496 df-fv 6549 df-ov 7425 df-nrm 23642 df-pnrm 23644 |
| This theorem is used by: pnrmopn 23668 |
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